Polls show the Metuchen senator trailing the Republican governor by about 20 points.

She's further disadvantaged with significantly less money to spend in the home-stretch of the campaign.

Buono will be on the biggest stage of her 20-year legislative career when debating Christie. The one-hour showdown will be carried live by CBS TV stations Channel 2 in New York and Channel 3 in Philadelphia at 7 p.m.

Christie has more public speaking experience as a frequent campaigner for fellow Republicans and representative of the Republican Governors Association.

Buono is the former state Senate majority leader and chairwoman of its budget committee.